In Migrant architects practising modern architecture Rebecca Hawcroft states that "the firm became one of the most successful and prominent in the period and designed several of the era’s best buildings".

[1] Kaad was born on Rotumah, a small Fijian island and was educated at Newington College (1911–1914).

His first employment was with the CBC Bank supervising the construction of branches in rural New South Wales.

A competition for the design of the Anzac War Memorial was commissioned in July 1929 he was awarded third prize.

Kaad's major work before his partnership with Lipson was the now demolished Rural Bank Building, Martin Place.